4wire 12v Network Fire Alarm Smoke Detector

General Details

Main feature

1. Easy installation and maintenance

2. Light Labyrinth with High stability & High accuracy

3. High adaptability to the ambient,with dustproof,mothproof,moisture proof and anti-white light function

4,This is 4 wire type (2 wire please click here!)

5. DC 9-35V wide voltage operating range

6.Low standby surrent

7. Power supply non-polarized input

8. Twin LED for 360 degree visual

9.  Flashing LED power indicater

10. Alarm output is relay output

11. Metal shield, anti-electromagnetic interference

12. Two-year limited warranty

13. Suit for detect the smoke in house, shop, hotel, restaurant, office building, school etc…

Technical Specification

ModelSR-811-4
Input voltageDC9~35V
Static current500uA(replay N.O.)
12mA(relay N.C.)
Alarm current18mA(replay N.O.)
10mA(relay N.C.)
Alarm indicationred LED on
Operating temperature-10~+50°C
Humidity0%~95%RH(No condensation)
Alarm outputrelay output
Contact rating0.5A@DC28V
Sensitivity0.5dB/m(±0.1dB/m)
Dimension103*53mm